This journal, intended for classroom teachers, provides a collection of essays organized around the theme of new horizons in mathematics and science education as well as a guide to instructional materials related to the theme. Topics addressed in the essays include digital libraries, the future of science curricula, integrated curricula, and Classroom Communication Systems (CCSs), and reports from schools on their implementation of new technologies and approaches. The guide to instructional resources is divided into sections including: (1) The Leading Edge in Classroom Practice; (2) New Directions in Curriculum: Mathematical Modeling; (3) New Directions in Curriculum: Data Analysis; (4) New Directions in Curriculum: Chaos and Fractals; (5) Curriculum That Addresses Current Issues in Science; (6) Innovative Science Instruction; (7) Integrating Technology; (8) 21st Century Tech Tools; and (9) Engaging Students with Technology. (MM)